A friend of mine found some of these on GiftTree, but I saw them all throughout Napa. I believe I saw some chocolate dipped Gloria Ferrer bottles while visiting that winery if I remember correctly. I don't quite this product, although most bottles are covered with some sort of plastic wrap in addition to the chocolate coating on the exterior of the bottle. Personally, as a food scientist, I'm not a fan of the chocolate as part of the packaging, but it does look cool! However, others find this to be a unique way to end a big meal in a very original way!
(Photo from GiftTree)
Most bottles sell for about $40 to $50, so not exactly your thriftiest wine buy, but definitely something unique. Wineries of Napa Valley also sell this product online for about $65 using Goosecross wine- but include a very nice package, which makes a really exquisite gift (see photo below). I guess the ol' saying is true - wine and chocolate are the perfect pair. :)
(Photo from Wineries of Napa Valley)